Cisco 3825 Software Configuration Manual page 114

Configuration Sequence
Step 8 Specify the slot location and port of IMA interface group.
Router(config-if)# interface ATM slot /IMA <group-number>
Where:
slot—Specifies the slot location of the ATM IMA port adapter.
•
group-number—Specifies the group number of the IMA group.
•
For example, the following command specifies the slot number as 0 and the group number as 0:
Router(config-if)# interface ATM0/IMA0
Should you desire, the optional ima group-id command can be used to explicitly configure the IMA
Note
Group ID for the IMA interface. You cannot configure the same IMA Group ID on two different IMA
interfaces; therefore, if you configure an IMA Group ID with the system-selected default ID already
configured on an IMA interface, the system toggles the IMA interface to make the user-configured IMA
Group ID the effective IMA Group ID. At the same, the system toggles the original IMA interface to
select a different IMA Group ID.
Disable the IP address configuration for the physical layer interface.
Step 9
Router(config-if)# no ip address
Specify the ATM bandwidth as dynamic.
Step 10
Router(config-if)# atm bandwidth dynamic
Step 11 Create an ATM path on the UMTS Iub interface, enter the following command:
Router(config-if)# atm umts-iub
Step 12 Disable the ILMI keepalive parameters.
Router(config-if)# no atm ilmi-keepalive
Create an ATM PVC:
Step 13
Router(config-if)# pvc [ name ] vpi/vci [qsaal]
Where:
name—(Optional) specifies the name of the ATM PVC interface you create.
•
vpi—Specifies the ATM network virtual path identifier (VPI) of this PVC.
•
vci—Specifies the ATM network virtual channel identifier (VCI) of this PVC.
•
qsaal—See Note.
•
Note
Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
4-56
Chapter 4 Configuring the Cisco 3825 Mobile Wireless Edge Router in a RAN-O Solution with the Command-Line
Typically AAL5 PVCs are defined using qsaal encapsulation. However, if the traffic profile is
such that the AAL5 packets exceed normal signaling (272 bytes) payload size, it is
recommended that the PVC be defined using AAL0.
This is commonly true for OAM PVCs and synchronization PVCs. NodeB Application Part
(NBAP) and Access Link Control Application Part (ALCAP) PVCs can be defined using qsaal
encapsulation.
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